How should these slippers fit?

I have these slippers, as you can see, they are very pointy towards the end. Almost a rectangle, I sized down and they fit perfectly around the foot! A little tight, which I assume will loosen up with wear. However, towards the end there is a lot of room. My foot fits great around the curve area, but I can't imagine my toes fitting in that space at the end? It's too long and thin.

If someone could, please share some insight on how they should be fitting.